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Merge remote-tracking branch 'iwlwifi-fixes/master' into HEAD
[firefly-linux-kernel-4.4.55.git]
/
drivers
/
dca
/
dca-core.c
diff --git
a/drivers/dca/dca-core.c
b/drivers/dca/dca-core.c
index bc6f5faa1e9ee692242a58c88b76932da114f15b..819dfda8823623fb8c7741f4ed299626393db044 100644
(file)
--- a/
drivers/dca/dca-core.c
+++ b/
drivers/dca/dca-core.c
@@
-420,6
+420,11
@@
void unregister_dca_provider(struct dca_provider *dca, struct device *dev)
raw_spin_lock_irqsave(&dca_lock, flags);
+ if (list_empty(&dca_domains)) {
+ raw_spin_unlock_irqrestore(&dca_lock, flags);
+ return;
+ }
+
list_del(&dca->node);
pci_rc = dca_pci_rc_from_dev(dev);